norton



(No Model),

5 Sheets-Sheet 1.

E. NORTON xv J. G. HoDGsoN. MACHINE EOEv SEAMING SHEET METAL GANS.

Patented Pgb. 27,1583.

(No Model.)

5 sheetssheet 2. E. lNORTON 8v J. G. HODGSON.

n MACHINE POE SEAMING SHEET METAL GANS.

No. 272,972. Patented Peb.27, 1883.

(No Model.) 5 Sheets-Sheet 3.

` E. NORTON 8v J. G. HODGSON.

MACHINE EOE SEAMING SHEET METAL GENS. r

No. 272,972. Patented Eeb.27,1883.

/wve n 5m:

5MG/Car@ (r/Io Model.) 5 Sheets-Sheet; 4.

E. NORTON Sz-J. G. HODGfSON.

' MACHINE EOE SEAMING SEEE': METAL. GANs. No. 272,972.` Patented Eeb.27,1883;

(No Model.) 5 sheets-snee# 5. E. NORTON 85 J. G. HODGSON.

MACHINE FOR SEAMI-NG SHEET METAL GANS. No. 272,972. Patented 11971.27, 1883.

t UNITED STATES PATENT OEEicE.

EDIIIN NORTON AND JOHN G. HODGSON, OF CHICAGO, ILLINOIS, ASSIGNORS TO SAID NORTON AND OLIVER W. NORTON, OF SAME PLACE.

MACHINE FOR SEAMINO SHEET-METAL CANS.

SPECIFICATION forming part of Letters Patent No. 272,972, dated Februafy 2'?, lesa.

Application filed September 30, 1882. (No model.) i

To all4 whom it may concern:

Be it known that we, EDWIN NORTON and JOHN Gr. HODGSON, citizens of the United States, residing in Chicago, in the county oi' Cook and State of Illinois, have invented a new and useful Improvement in Machines for Seaming SheetMetal Cans, ofwhich the following is a specification.

.This invention relates to machines for forining double seams on the ends of sheet-metal cans, and its object is to provide a machine for performing this operation automatically and with greater facility and accuracy than heretofore. t

`In double-seaming machines heretofore in use the seaming-tools are pressed against the revolving can by the hand of the operator, first one tool and then another, or, if only a single tool is employed, first in one position and then in another, for performing the different steps or operations of burring, peening, and tinishing the seam, which makes the operation of the machine somewhat slow and tedious, as the attendant must not only place the can upon the revolving stand or chuck, but give it his attention throughout the Whole operation. And to do good Work and make tight and perfect seams it is necessary that the requisite time should be given to each separate step, and that the tool should be applied to the can with the proper degree ot' force, so that heretofore it has been necessary to employ skilledlabor to run these machines, and even then many imperfect and leaky seams will unavoidably occur.

The present invention consists essentially iu the combination, with a revolving chuck for holding and revolving the can, ofa seaming tool or tools mounted upon a rocking or movable holder and automatically applied to the can to form the seam by cams or equivalent means, whereby the operation of the machine t and its work is rendered uniform and perfect.

The revolving chucks or can holders are mounted upon a turret or table, which is intermittently rotated and locked in position for the can to be operated upon by the seamingtools. The seaming-tools, consisting of a plain roller, and a beveledged roller, are mounted one above the other on sliding arms, which move radially in and out in `suitable slots or guides on a holder secured to a rock-shaft. As the rock-shaft turns up or down stationary cams force the sliding tool-arms in and out and present the tools in different positions to the work, as may be required. Except during the finishing or last step, both tools operate or bear simultaneouslyT upon the work, the one oliering an opposing surface for the other to bear against. Thetool-holder and cams for operating the tools are all mounted upon an adjustable sliding head, so that the machine may be adjusted to operate upon cans of dit'- ferent sizes.

In the accompanying drawings, which form a part ot' this specification, Figure lis a sectional elevation of a machine embodying our invention. Fig. 2 is a plan view, showing the mechanism for operating the revolving chucks or can holders. Fig. Sis a detailsectional view of the tool-holding rocker-shaft and the sliding head with the cams removed. Figs. 4, 5. 6, and 7 are views showing the seam in several stages of completionand the positions of the seaming-tools. FigS is a sectional view, showing the manner of mounting the tool in the tool-holder. Fig. 9 is a plan view of the mechanism for alternately rotating and holding the revolving turret stationary; and Fig. l0 is a detail view,showing the manner ot' mounting and adjusting one of the cams on the sliding head. Fig. ll is an enlarged detail side ele vation of the seaming-tools, the rock-shaft head or holder in'which they are mounted so as to reciprocate therein, andthe stationary but adjustable cams for imparting to the seaming-tools their reciprocating or sliding motion as the head or holderin which they are mounted is rocked-up and down.

In the drawings similar letters of reference indicate like parts throughout the several tigures.

A is the frame ot' the machine, and B is the revolving turret, secured to the hollow sleeve C, which is journaled in suitable bearings, C and C2,on the main frameof the machine. The turret-arms B are provided with chuck or canholding disks b b', mounted to revolve with the to cans of different heights.

D is a rock-shaft journaled in a suitable bearing,-D, on the sliding head G, and to the end ofthe shaft the toolholder or head dis secured so as to rotate or rock with it. The tool-holder d is provided with radial grooves or guides7 in which the arms or slides, d2 on which the seaming-tools d3 dnl are journaled, may move in and out to or from the work. The vsliding arms d2 are actuated, as the toolholder is rocked or rotated, by means of statlonary grooved cams E and E', the arms d2 being provided with pins c, which tit in said grooved cams. The pins e should be provided with small friction pulleys or rolls. The shaft D is rocked about a quarter-turn on its axis by means of the crank-arm D6 and the pitman D2, connected to the revolving wheel D3 on the shaft D4, which is driven by the pulley D5. The sliding head G, to which the cams E and E are secured, and upon which the rock-shaft is mounted, may be moved in and ont upon its support H to adjust the machine to different-sized cans by means of the adjusting-screw H. The upper cam E is pivoted at its upper end to the sliding head G, and is provided with an independent adjusting-screw h at its lower end, whereby the force with which the finishing-roll presses against the can may be regulated. The cam E is secured to the sliding head G by screws or bolts c passing through a flange, c2, on the cam E.

The turret is rotated by means ot' a pitman, K, spring-ratchet k, which engages with the ratchet-wheel kf, and the turret is locked in position by means of the spring-bolt k2, which engages with notches k3 in the chuck-wheel 7a4. The spring-bolt k2 is withdrawn, to permit the wheel to revolve, by means ot' a projection or lip, 765, on the pitman-rod. The pitman-rod K is connected by a wrist-pin to the wheel k/on the shaft D4.

k2 is a clutch, whereby the mechanism for operating the seaming -tools and turret is thrown in and out of gear.

The operation of the scathing-tools is as follows: A canand its head or cover being placed in one ot' the chucks ofthe turret and the turret revolved into the position shown in Fig. 1, the revolution of the pitman-wheel D3 rocks the shaft D, causing the cam E to iorce the bevel-roller or peening-tool against the ange of the cover and fold it over the flange on the can-body, as shown in Fig. 5, and at the same time the cam E presses the smooth or finishing tool down on the top edge of the cover, so as to hold the same on andaft'ord an opposing surface for the peening-tool to bear against. As the tool -holder swings down on the curve the cams hold both tools against the seam until it assumes the form shown in Fig. 6e the peening-roller offering a support to the under side ofthe seam, while the smooth rollerabove is turning the seam down. As the tool-holder swings still farther down to the end of its stroke the cam E draws back the bevel peeningtool, while the smooth roller, assuming a horizontal position, finishes the seam and presses it smooth against the side of the can. The seamingtools, it will thus be seen, have acompound swivel or rotary and reciprocating motion, the swivel or rotary motion being communicated to the tools by the swinging or rocking of the tool-holder on the rock-shaft, and the reciprocating motion ot' the tools on the tool-holder being due to the action of the cams on the sliding tool-arms.

rlhe point or edge ofthe bevel peening-roller d4, as shown in Figs. 1, 5, and 6, is the center or axis of the rock-shaft, and the circular or middle portion of the cam E is an arc of a circle about such center, so that the peening-to'ol swings around such point as a center until it is withdrawn bythe lower or upper portions of the cam.

We have shown in the'drawings whatwe consider the best method of practicing our invention and the preferable number and form of seaming-tools to be used, as well as what We believe to be the most desirable means or mechanism for actuating the same; but the particular number and form of the seamingtools may be greatly varied, as well as the particular form of the mechanism for actuating the same, without departing from the essential feature or principle of our machine or invention.

M is a stationary cam-ring for automatically raising the lower disk of the chuck as the turret is revolved to clasp the can and hold it firmly while being operated upon by the seaming-tools. The raised portion of the cam is about one-third the circumference of the camring.

We claiml. The combination of a revolving can-holder or chuck with a rocking or swiveling toolhoider and seaming-tools mounted in said holder and reciprocating radially therein, and means-for automatically actuating said toolholder and tools, substantially as specified.

2. The combination, with a rocking toolholder provided with seaming-tools reciprocating thereon, of means for operating said tool-holder and tools, and an intermittently-ro- 'tating turret provided with revolving chucks for the'cans, substantially as specified.

3. The combination ot a revolving can-holder or chuck with a tool-holder secured to a rockshai't, and seaming-tool mounted movably on said holder, and a cam for operating said tool IOO IIO

as the shaft is rocked, substantially as specied.

4. In a can-seeming machine, the combination of a revolving chuck or holder for the can with a searning-tool journaled on a sliding arm, anda rocking tool-holder in which said arm is mounted, and a cam for operating the sliding arm as the tool-holder is rocked, substantially as specified.

5. The combination, with 4a revolving chuck for the can, of a tool-holder secured to a rockshaft and provided with radial grooves or guides, sliding toolarms mounted in said grooves,afinishingand a bevel-edged tool j ournaled on said` arms, and stationary cams for operating said tools, substantially as specied.

the cans mounted on said turret, with an ad- 6. The combination of a revolving turret, mechanism for alternately revolving and locking the turret in position, revolving chucks for 2O jnstable sliding head and seaming-tools, and

means for operating the seaming-tools mounted on said head, substantially as specied.

7. The combination of the steaming-tools with atool-holder, rock-shaft, pitman-rod for operi z5 ating said rock-shaft, and cams for actuating the searning-tools, substantially as specified.

EDWIN NORTON. JOHN G. HODGSON.

Witnesses:

H. M. MUNDAY, WILL. P. HALL. 

